Kung Zhu Pets Battle Arena

With eight original characters split into two battling groups called Special Forces and Ninja Warriors, Kung Zhu Pet owners will have the thrill of training each character to transform fighting, battling warriors. While these Kung Zhu hamsters may start of as "cute" and "mild-mannered" once they are sent into their main training grounds, smart chip technology will actually allow for a distinct personality transformation of fighting ninja and warriors.
 — As of 8.12.10, this product had 4 out of 5 stars from seven reviews on ToysRUs.com and was listed No. 14 in best-selling toys and games. PROS: Easy to use and entertaining. CONS: Not very durable.